======6.1.5 Ensure permissions on /etc/shadow are configured (Scored)====== =====Profile Applicability===== Level 1 - Server Level 1 - Workstation =====Description===== The ''/etc/gshadow'' file is used to store the information about groups that is critical to the security of those accounts, such as the hashed password and other security information. =====Rationale===== If attackers can gain read access to the ''/etc/gshadow'' file, they can easily run a password cracking program against the hashed password to break it. Other security information that is stored in the ''/etc/gshadow'' file (such as group administrators) could also be useful to subvert the group. =====Audit===== Run the following command and verify ''Uid'' is ''0/root'', ''Gid'' is ''0/root'', and ''Access'' is ''000'': # stat /etc/gshadow Access: (0000/----------) Uid: ( 0/ root) Gid: ( 0/ root) =====Remediation===== Run the following command to set permissions on ''/etc/gshadow'': # chown root:root /etc/gshadow # chmod 000 /etc/gshadow